Rolls-Royce /ˌrəʊlz ˈrɔɪs◂ $ ˌroʊlz-/ BrE AmE noun trademark
1 . [countable] a very expensive and comfortable car made by a British company
2 . the Rolls-Royce of something British English informal something that is regarded as the highest quality example of a particular type of product:
the Rolls-Royce of beers